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BCS

Changes in Beneficial Ownership · 4

Archimedes Tech SPAC Partners III Co.

ARCINASDAQEQUITYCurrent

Changes in Beneficial Ownership

Filed Jan 26, 2026Accepted Jan 26, 2026, 5:38 PM ESTFiling CIK 2083910Accession 0001437749-26-002116
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Structured filing — 4

rdgdoc.xml

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Filing details

Report period
2026-01-26
Issuer
Archimedes Tech SPAC Partners III Co.
Issuer CIK
0002083910
Trading symbol
ARCI

Reporting owner 1

Name
Archimedes Tech SPAC Sponsors III LLC
Reporting owner CIK
0002085154
Relationship
10% owner
Address
2093 PHILADELPHIA PIKE #1968, CLAYMONT, DE, 19703

Non-derivative transactions

Non-derivative transactions · 1 reported row
SecurityTransaction dateCodeAmountA / DPrice (USD)Owned afterOwnership
Ordinary Shares2026-01-26P · Form 4390,000A[F1]390,000D
Table key
P · Form 4
Purchase on the market or privately
A
Acquired
D
Direct

Derivative transactions

Derivative transactions · 1 reported row
SecurityConversion / exercise price (USD)Transaction dateCodeAmountA / DPrice (USD)ExercisableExpiresUnderlying securityUnderlying sharesOwned afterOwnership
Warrants to purchase Ordinary Shares11.502026-01-26P · Form 497,500A[F1][F2][F2]Ordinary Shares97,50097,500D
Table key
P · Form 4
Purchase on the market or privately
A
Acquired
D
Direct

Footnotes

F1
Reflects the 390,000 private units owned by Archimedes Tech SPAC Sponsors III LLC, the Issuer's sponsor (the "Sponsor"). Each private unit consists of one ordinary share and one-fourth of one redeemable warrant, with each whole warrant entitling the holder thereof to purchase one ordinary share for $11.50 per share, subject to adjustment. The private units were purchased pursuant to a Private Units Purchase Agreement, dated January 22, 2026, by and between the Issuer and the Sponsor, at $10.00 per unit for an aggregate purchase price of $3,900,000.↩ 1↩ 2
F2
The warrants included in the private units will become exercisable at the later of 12 months from the closing of the Issuer's initial public offering and 30 days after the completion of the Issuer's initial business combination and will expire five years after the completion of the initial business combination or earlier upon redemption or liquidation.↩ 1↩ 2

Signature 1

Signed
/s/ Long Long - Managing Member
Date
2026-01-26

Company context

Current securities

Recent company filings

  1. 10-Q filingAug 13, 2026
  2. 3 filingJul 17, 2026
  3. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory ArrangementsJul 17, 2026
  4. 10-Q filingMay 14, 2026
  5. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory ArrangementsMay 1, 2026

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